Can you believe that an iRumor has come true, for once—and early? Apple's started selling unlocked iPhone 4 phones in the US, with the 16GB model (in both black and white) costing $650, and the 32GB models coming in at $750.

While this is a step forward in the right direction for Apple (after they started selling unlocked iPhones in the UK last year), US customers can still only use them for 3G on the AT&T network. They can, however, use them with T-Mobile microSIMs, but only on EDGE. Business-travellers will now also be able to pop a microSIM in there if abroad, and take advantage of their host country's new rates. [Apple via SlashGear]